Topic Ohm's law
Asked 5 times across 2 UPSC exams over 4 years (2020–2024), peaking in 2023.
Key insights
- Most tested in NDA — 4 of 5 PYQs
- Most asked in 2023
- Recurs across 3 years (2020–2024)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2020 → GEO 2023
How the concept evolved
Rising — more than half its appearances (5 of 5) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2024
For an electric circuit given below, the correct combination of voltage (V) and current (I) is [Circuit with 3 A source and resistors 100 ohm, 200 ohm, 300 ohm]
- A V = 900 V; I = 18 A
- B V = 300 V; I = 5.5 A ✓
- C V = 600 V; I = 1 A
- D V = 300 V; I = 2 A
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry
NDA2024
Consider the following electric circuit: (10 ohm, 0 ohm, 10 ohm in parallel between two 5 ohm resistors, 10 V source). The current in the above electric circuit is:
- A 1 A ✓
- B (10/15) A
- C 2 A
- D 1.5 A
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
NDA2023
The potential difference between the two end terminals of an electric heater is 220 V and the current through it is 0.5 A. What would be the current through the heater if the potential difference across the terminals of the heater is reduced to 120 V ?
- A 1.0 A
- B 0.5 A
- C 0.27 A ✓
- D 0.7 A
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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